Samsung Microwave Error C-F0

⚡ Quick Answer: The Samsung Microwave error C-F0 indicates a communication failure between the main PCB and the touch/display PCB. This malfunction often leads to the... ✅ DIY Fixable

What Does Error C-F0 Mean?

The Samsung Microwave error C-F0 indicates a communication failure between the main PCB and the touch/display PCB. This malfunction often leads to the microwave becoming unresponsive, displaying the C-F0 error, and may produce unusual humming sounds. If the error persists after a basic reset, it is likely a more serious issue that requires inspection and possible repair of the internal components.

Common Symptoms:

  • Microwave becomes unresponsive and displays C‑F0
  • Error persists after basic reset

Possible Causes

  • Communication failure between main PCB and touch/display PCB (medium)

How to Fix Error C-F0

DIY Fix Basic reset and power cycle

  1. Unplug the microwave from power for at least 1–5 minutes.
  2. Wait to allow the internal capacitors to discharge, then plug the unit back in.
  3. Observe display to see if error reappears.

Technician Only Inspect and repair communication link

  1. Disconnect power and open microwave casing following safety protocols.
  2. Visually inspect wiring harness between main PCB and touch/display PCB for loose or damaged connectors.
  3. Test continuity of communication lines with multimeter.
  4. Replace faulty PCB (main or touch/display) as identified by testing.

Parts needed: Main PCB, Touch/display PCB, Wiring harness/connectors

🛑 When to Call a Pro:
  • Error persists after reset attempts
  • Microwave exhibits additional dysfunction (e.g., unresponsive controls, power issues)

Technical Specifications

wattage 1000W
component Magnetron
resistance 0.5-1.0 ohms
part_number DE74-20019A
voltage_rating 120V AC

Common Questions

What does C-F0 error mean on Samsung Microwave?

C-F0 indicates a communication failure between the main PCB and touch/display PCB, making the microwave unresponsive.

Can I fix Samsung Microwave C-F0 error myself?

Yes, you can try a basic reset by unplugging the microwave for 1–5 minutes and then plugging it back in.

How much does it cost to fix C-F0 error?

The estimated repair cost ranges from $80 to $250+, depending on parts and service rates.

When should I call a technician for C-F0?

Call a technician if the error persists after reset attempts or if the microwave shows additional issues like unresponsive controls.

Sources & References

Data last verified: 2026-01-10

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